1422731565 has 12 divisors (see below), whose sum is σ = 2466068124. Its totient is φ = 758790144.

The previous prime is 1422731549. The next prime is 1422731567. The reversal of 1422731565 is 5651372241.

1422731565 is a `hidden beast` number, since 1 + 4 + 22 + 73 + 1 + 565 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 647498916 + 775232649 = 25446^2 + 27843^2 .

It is not a de Polignac number, because 1422731565 - 2⁴ = 1422731549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422731567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15808084 + ... + 15808173.

It is an arithmetic number, because the mean of its divisors is an integer number (205505677).

Almost surely, 2^1422731565 is an apocalyptic number.

1422731565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1422731565 is a deficient number, since it is larger than the sum of its proper divisors (1043336559).

1422731565 is a wasteful number, since it uses less digits than its factorization.

1422731565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31616268 (or 31616265 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 1422731565 is about 37719.1140537526. The cubic root of 1422731565 is about 1124.7111199011.

The spelling of 1422731565 in words is "one billion, four hundred twenty-two million, seven hundred thirty-one thousand, five hundred sixty-five".